Artificial fuel and method of making the same.



UNITED STATES PATEN ossron.

DANIEL DRAWBAUGH, OF EBERLYS-MILL, AND BLAKE E. GAMBLEpOF BOWMANSDALE PENNSYLVANIA; SAID-DRAWBAUGH ASSIGNOR TO THE DRAWBAUGH ARTIFICIAL FUEL COMPANY, OF HARRISBURG, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

Specification of Letters Patent.

Patented Oct. 8,1907,

Application filed June 18, 1906. Serial No- 322/51 0.

To all whom it may concern:

Be it known that we, DANIEL DRAWBAUGH, of Eberlys Mill, Cumberland county, Pennsylvania, and

.-BLAKE EJGAiuBLE, of Bowmansdale, Cumberland county, Pennsylvania, both citizens of the United States, have invented certain new and useful Improvements in Artificial Fuel and Methods of Making the. Same, of which the following is a full, clear, and exact description. 7 J

This invention relates to an artificial fuel, and a method of making 'orcohesing the same, without the aid of heat; and in order to produce this fuel, we ema ploy comminuted carbonaceous material, such as fine coal or slack, peat, sawdust, tanbark, or other comminuted wood fiberya'binder such as dehydrated sul-' fate oflime, (anhydrous gypsum, or plaster of paris), and an oxidizer, such as manganese oxid, or diOXid, these being thoroughly mixed before adding sufficient water to insure cohesion. 'lo resist water and weather, we employ a solution of potash water glass, which is sprayed upon the fuel after briqueting.

The solution of potash water glass, is preferably boiled with water before spraying, the boiling action producing a syrup of such a consistency as to render the water glass applicable'to the briquets in a thin coat, which though uninflammable, allows access to the particles of the fuel, when melted, by the fire. I

Any.desired proportion may be'used, but the preferable formula is as follows :comminuted carbonaceous with the fine coal and wood fiber, and the manganese oxid is added, the Whole being mixed, preferably in a continuous mixer until it becomes a homogeneous mass.

After thoroughly mixing, the dehydrated sulfate of lime is added, and the mass moistened suificiently to insure cohesion. The moistened and mixed massis then pressed into blocks or briquets and dried for a day or two; and finally sprayed with a solution of potash water glass.

The potash water glass is used, preferably in this case,

as ,although.it"is non-combustible, it fuses at a great heat, and this assists in holding the particles of the fuel togethera longer period than materials that melt at a low temperature' The quantity employed is sosmall,

that the combustibility of the fuel is not impaired to an appreciable degree."

We claim:'

1. The herein described method of producing an artificial fuel, consisting'of mixing the ingredients, compressing the same in briquets, and then spraying the' briquets-with a solution of water glass to coat the briquet to resist water and weather.

2. The herein described method of producing an artificial fuel, consisting in mixing together comminuted carbonaceous material adding thereto and mixing therewith manganese oxld; adding thereto and thoroughly mixing therewith a cementing compound; moistening the mixed mass to insure coalescence of the particles; pressing and molding the' moistenedand mixed mass into blocks or briquet; drying the product; and spraying the product with water glass to makethe product water-proof and weather resistant-.7. e

3. An artificial fuel, composed of commlnutedcarbonaceous material, a cement and water, and manganese oxid; and a coating of water glass for the brlquet, formed of the-above material to form a water-"proofing and weather resisting coating for the briquets.

4. An artificial fuel, composed of thoroughly commingled cornminuted carbonaceous material, dehydrated sulfate of lime, manganese oxid, and water; and a coating of water, glass for the briquets formed of the above material to form a water-proofing and weather-resisting coating for the briquets.

5. An artificial fuel, composed of comminuted carbonaceous material, a cement and water, and manganese oxid;

and a coating of potash water glass for the briquet,

formed'of the above material to form a water-proofing and weather-resisting coating for the briquets.

6. An artificial fuel, composed of thoroughly commingled commlnuted carbonaceous material/dehydrated sulfate of lime, manganese oxid, and water; and a coating of potash water glass for the briquets formed of the above material to form a waterproofing and weather-resisting coating' for the briquets.

7. An artificial fuel, the ingredients of which are cemented by a quick-setting cement andpressure and a" coat- DANIEL DRAWBAUGH. BLAKE E. GAMBLE.

Witnesses A. M Bowman, H. N Bowman. 

